A large and cold storm system will begin to impact Arizona on Tuesday with increasing southwest winds. This storm will then spread snow and rain from west to east across the state beginning Tuesday night. Precipitation is expected to linger into Thursday. Snow Levels could drop to below 3000 feet Wednesday into Thursday. Winter driving conditions are likely with this storm system, use caution if travel is necessary.

A winter storm warning remains in effect until 8 pm this evening in many areas. Periods of moderate to heavy snow will continue through early evening. Expect difficult winter driving conditions with periods of zero visibility in heavy snow showers and slick snow packed roads.

If you must travel, please give yourself plenty of time. Make sure to take emergency supplies that include winter clothing/blankets, food, water and a flashlight. Tell family or friends your route of travel, vehicle description and estimated time of arrival.

For the latest road conditions call the ADOT Freeway Management System at 511 or visit www.Az511.gov.

Snow showers will continue today as a trough moves west to east across northern Arizona. Significant snowfall will occur over portions of central and northeastern Arizona where a winter weather advisory for snow has been issued.

Expect difficult winter driving conditions today with slick snow packed roads and periods of near zero visibilites in moderate to heavy snow showers.